Dummy trim with an improved resistance to pull

ABSTRACT

A dummy trim includes a mounting plate to be fixed to a door, a sleeve holder securely mounted to the mounting plate and including a peripheral wall, a sleeve including a first end mounted in the peripheral wall of the sleeve holder, and a lever securely attached to a second end of the sleeve to move therewith. The first end of the sleeve includes a slot having an edge facing the lever. The peripheral wall of the sleeve holder includes an integral stop extending into the slot of the sleeve and abutting against the edge of the slot.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a dummy trim with an improvedresistance to pull.

2. Description of the Related Art

FIG. 5 of the drawings illustrates a conventional dummy trim that ismounted to a door 10 for pull only. Namely, the dummy trim provides nolocking function. The dummy trim comprises a sleeve holder 25 to befixed to a door 10 such as by fasteners 26 extending Through apertures27 formed in the sleeve holder 25, a sleeve 23 having an end held by thesleeve holder 25, a rose 22, and a lever 21 securely attached to theother end of the sleeve 23. A user may pull the lever 21 for opening thedoor 10. When engaging the sleeve 23 and the sleeve holder 25, both ofthem are drilled to farm aligned radial holes 31 and 32, and a screw orpin 30 is inserted into the radial holes 31 and 32 to thereby secure thesleeve 23 and the sleeve holder 25 together. A protective sleeve 24 maybe mounted around the sleeve holder 25. However, the pulling forceapplied to the lever 21 exerts a shear force to the pin 30 and thusloosens the sleeve 23 after a period of time. Further, drilling of theradial holes 31 and 32 and insertion of the pin 30 are troublesome andcause an increase in the cost.

SUMMARY OF THE INVENTION

An object of the present invention is to provide dummy trim with animproved resistance to pull.

A dummy trim in accordance wit the present invention comprises amounting plate to be fixed to a door, a sleeve holder securely mountedto the mounting plate and including a peripheral wall, a sleeveincluding a first end mounted in the peripheral wall of the sleeveholder, and a lever securely attached to a second end of the sleeve tomove therewith. The first end of the sleeve includes a slot having anedge facing the lever. The peripheral wall of the sleeve holder includesan integral stop extending into the slot of the sleeve and abuttingagainst the edge of the slot.

Other objects, advantages, and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a fully exploded perspective view of a dummy trim inaccordance with the present invention.

FIG. 2 is an exploded perspective view of the dummy trim in accordancewith the present invention and a door to which the dummy trim ismounted.

FIG. 3 is a sectional view of the dummy trim in accordance with thepresent invention and the door.

FIG. 4 is a sectional view illustrating a pressing procedure formanufacturing the dummy trim in accordance with the present invention.

FIG. 5 is a sectional view of a door and a conventional dummy trim.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 1 and 2, a dummy trim in accordance with the presentinvention generally comprises a lever 1, a sleeve 3, a mounting plate 4,and a sleeve holder 5. The sleeve holder 5 is fixed to the mountingplate 4 and includes a peripheral wall 12. The mounting plate 4 is fixedto a door 10. Fasteners 6 are extended through holes 7 in the mountingplate 4 and into the door 10, best shown in FIG. 3.

Referring to FIGS. 1 and 3, the sleeve 3 includes a slot 8 in an endthereof that is received in the peripheral wall 12 of the sleeve holder5. The lever 1 is secured to the other end of the sleeve 3 to movetherewith.

Referring to FIG. 4, in manufacture, the peripheral wall 12 of thesleeve holder 5 is pressed inward by a punch member 13 in a positionthat aligns with the slot 8, thereby forming an inclined integral stop11 that extends into the slot 8 of the sleeve 3 and that abuts againstan edge 9 (FIG. 1) of the slot 5 that faces the lever 1. By such anarrangement, as illustrated in FIG. 3, when the lever 1 is pulled, thesleeve 3 is stopped by the integral stop 11 that is still integral withthe sleeve holder 5 after the pressing procedure. The resistance to pullis increased when compared with the conventional design using a pin 30to secure the sleeve 23 and the sleeve holder 25 together.

Preferably, the punch member 13 has an inclined bottom 14 that declinestoward the mounting plate 4, as shown in FIG. 4. This avoids unnecessarydeformation of the sleeve 3 and the sleeve holder 5 after pressing.

A rose 2 may be mounted to enclose the mounting plate 4, the fasteners6, and the sleeve holder 5, thereby providing an aesthetically pleasingappearance.

Although the invention has been explained in relation to its preferredembodiment, it is to be understood that many other possiblemodifications and variations can be made without departing from thescope of the invention as hereinafter claimed.

What is claimed is:
 1. A dummy trim comprising: a mounting plate adaptedto be fixed to a door; a sleeve holder securely mounted to the mountingplate and including a peripheral wall; a sleeve including a first endmounted in the peripheral wall of the sleeve holder and a second end,the first end of the sleeve including a slot, the peripheral wall of thesleeve holder extending along a longitudinal direction of the sleeve;and a lever securely attached to the second end of the sleeve to movetherewith; the slot of the sleeve having an edge facing the lever; theperipheral wall of the sleeve holder including an integral stopextending into the slot of the sleeve and abutting against the edge ofthe slot, with the integral stop being punched from and remainingintegral with the peripheral wall of the sleeve.
 2. The dummy trim asclaimed in claim 1, wherein the integral stop is formed by means ofpressing the peripheral wall of the sleeve holder in a position aligningwith the slot.
 3. The dummy trim as claimed in claim 2, wherein theintegral stop is inclined.
 4. The dummy trim as claimed in claim 1,wherein the integral stop is inclined.
 5. A dummy trim comprising: amounting plate adapted to be fixed to a door, with the mounting plateincluding an opening; a sleeve holder securely mounted to the mountingplate and including a portion for abutting with the mounting plate and aperipheral wall extending from the portion and through the opening ofthe mounting plate; a sleeve including a first end mounted in theperipheral wall of the sleeve holder and a second end, the first end ofthe sleeve including a slot, the peripheral wall of the sleeve holderextending along a longitudinal direction of the sleeve; and a leversecurely attached to the second end of the sleeve to move therewith theslot of the sleeve having an edge facing the lever; the peripheral wallof the sleeve holder on the opposite side of the mounting plate than theportion including an integral stop extending into the slot of the sleeveand abutting against the edge of the slot, with the integral stop beingpunched from and remaining integral with the peripheral wall of thesleeve.
 6. The dummy trim as claimed in claim 5, wherein the integralstop is formed by means of pressing the peripheral wall of the sleeveholder in a position aligning with the slot.
 7. The dummy trim asclaimed in claim 6, wherein the integral stop is inclined.
 8. The dummytrim as claimed in claim 5, wherein the integral stop is inclined.
 9. Amethod for mounting a dummy trim to a door, comprising: fixing amounting plate to a side of a door; fixing a sleeve holder to themounting plate, the sleeve holder including a peripheral wall extendingalong a direction perpendicular to an extending plan of the door;mounting an end of a sleeve in the peripheral wall of the sleeve holder,the end of the sleeve including a slot, the slot having an edge;punching the peripheral wall of the sleeve holder in a position thataligns with the slot, thereby forming an integral stop that extends intothe slot of the sleeve and that abuts against an edge of the slot; andfixing a lever to another end of the sleeve, with the integral stopstopping the sleeve when the lever is pulled to move the door.